Please use this identifier to cite or link to this item: http://hdl.handle.net/2381/36581
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dc.contributor.authorMilan, Steve E.-
dc.contributor.authorLester, Mark-
dc.contributor.authorSato, N.-
dc.contributor.authorTakizawa, H.-
dc.date.accessioned2016-02-04T13:07:29Z-
dc.date.available2016-02-04T13:07:29Z-
dc.date.issued2001-02-28-
dc.identifier.citationAnnales Geophysicae, 2001, 19 (2), pp. 205-217 (13)en
dc.identifier.issn0992-7689-
dc.identifier.urihttp://www.ann-geophys.net/19/205/2001/en
dc.identifier.urihttp://hdl.handle.net/2381/36581-
dc.description.abstractObservations of E region backscatter by the Ice-land East SuperDARN HF radar from the 30 minute period 2330 to 2400 UT on 13 September 1999 are presented, along with simultaneous observations of auroral luminosity from two all-sky cameras. Interferometric techniques are employed to estimate the altitude of origin of each echo observed by the radar. Under investigation is a region of backscatter which is L-shell aligned and exists in a region of low auroral luminosity bounded to the north and the south by two auroral arcs. The spectral characteristics of the backscatter fall into three main populations: broad, low Doppler shift spectra; narrow, high Doppler shift spectra; and exceptionally narrow, low Doppler shift spectra. The first two populations are similar to type II and type I spectra observed with VHF radars, respectively. These populations scatter from near the peak of the E region. The high Doppler shift population appears to exist in a region of sub-critical electric field. The third population originates below the E region peak at altitudes between 80 and 100 km. We argue that a non-coherent scattering process is responsible for this backscatter.en
dc.language.isoenen
dc.publisherEuropean Geophysical Societyen
dc.rightsCopyright © Author(s) 2001. This work is distributed under the Creative Commons Attribution 3.0 License ( http://creativecommons.org/licenses/by/3.0/ ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.en
dc.subjectScience & Technologyen
dc.subjectPhysical Sciencesen
dc.subjectAstronomy & Astrophysicsen
dc.subjectGeosciences, Multidisciplinaryen
dc.subjectMeteorology & Atmospheric Sciencesen
dc.subjectGeologyen
dc.subjectASTRONOMY & ASTROPHYSICSen
dc.subjectGEOSCIENCES, MULTIDISCIPLINARYen
dc.subjectMETEOROLOGY & ATMOSPHERIC SCIENCESen
dc.subjectionosphereen
dc.subjectauroral ionosphereen
dc.subjectionospheric irregularitiesen
dc.subjectLATITUDE E-REGIONen
dc.subjectHF RADARen
dc.subjectDOPPLER SPECTRAen
dc.subjectCUTLASSen
dc.subjectIRREGULARITIESen
dc.subjectELECTROJETen
dc.titleOn the altitude dependence of the spectral characteristics of decametre-wavelength E region backscatter and the relationship with optical auroral formsen
dc.typeJournal Articleen
dc.identifier.doi10.5194/angeo-19-205-2001-
dc.identifier.eissn1432-0576-
dc.description.statusPeer-revieweden
dc.description.versionPublisher Versionen
dc.type.subtypeArticle;Journal-
pubs.organisational-group/Organisationen
pubs.organisational-group/Organisation/COLLEGE OF SCIENCE AND ENGINEERINGen
pubs.organisational-group/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Physics and Astronomyen
dc.dateaccepted2001-01-24-
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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